Baby jumper



June 8 1926.

l. O. DUNCAN BABY JUMPER Filed August 29, 1924 RN); duo! nur' Patented June 8, 1926.

UNITED STATES ISAAC O. DUNCAN, OF NASHVILLE, TENNESSEE.

BABY JUMPER.

Application led August 29, 1924.

This invention has as its object to provide an improved baby jumper embodying means for weighing a baby using the jumper so that the state of health of the baby may be informatively Watched by noting the Weight of the baby from time to time.

In the accompanying,drawings:

Figure 1 is a perspective view of my improved baby jumper.

Figure 2 is a top plan view of the device.

Figure 3 is a rear elevation of the device.

In carrying the invention into effect, I employ a frame which is composed of a pair of slidably connected yokes 10 and 11 respectively. Each of these yokes is preferably formed fromL a length of material bent into substantialiy U-shape to provide a pair of parallel side rods 12 joined by a connecting portieri looped to provide an eye 13 While at the ends of the rods are formed lateral loops 1i', the loops of each yoke slidably accommodating the rods of the other yoke for connecting the yokes with each other. Associated with the frame is a spring 14 provided at its upper' end With a hook 15 engaged through the eye 13 of the yoke 10 n'hiie at its lower end the spring is provided With a similar hook 1G engaged through the eye of the yoke 1l. The spring Will thus normally hold the yokes at the limit of their invrard sliding movement upon each other. Fixed to the yoke lO of the frame is a face plate 17 overlying the spring 11i. This face plate is preferably of sheet metal and is concavo convex in cross section so as to clear the spring. Formed on the plate at the upper corners thereof are rearwardly directed lugs 18 which are bent about the connecting portion 10 between the side rods 12 of said yoke. Another pair of the lugs 18 located at the lower corners of the plate is similarly secured to the side rods of the yoke. Thus the face plate is rigidly fixed to the yoke 10 so as not to interfere With the sliding movement of the yokes 10 and 11 upon each other. At its outer side, the face plate 17 is calibrated at one longitudinal edge thereof, as indicated at 19, to read in terms of pounds, and fractions thereof if desired, and fixed to the adjacent side rod of the yoke 11 near its upper end is, as particularly shown in Figure 3 of the drawings, an indicator 20, bent to overhang the face platel to cooperate with the scale thereon. To enhance the attractiveness of the device, the face plate 17 may, as suggested in Figure 1, carry the picture Serial No. 734,949.

of a baby while, as a matter of convenience, the face plate is also preferably provided, as indicated at 21, With a tabulation of the average weight of a normal infant at different ages.

Suspended by the spring 14 is a sling 22. This sling may be of any approved character and in the present instance the sling is shown as provided with a fabric seat 23 having openings to receive the legs of an infant While at its upper end the sling is provided with a hook 24 removably engaged through the eye 13 of the yoke 11. 1n use, the device is, of course, attached to any convenient overhead structure and, in the present instance, I have shown the use of a hook 25 with which the eye 13 of the yoke 10 is engaged As Xvill now be seen in vievv7 of the foregoing, a bab sitting in the seat 23 of the sling 22 will be yieldably supported by the spring 11i so that the device Will thus ordinarily serve all the purposes of a conventional baby jumper. However, the device will, as will also now be appreciated, provide, in addition, a means whereby the Weight of the baby may be conveniently noted from time to time. The spring 14 will, of course, be stretched under the Weight of the baby so that the yoke 11 will be shifted downwardly upon the yoke 10 for moving the indicator 20 to a given reading of the scale 19 and thus register the Weight of the baby. Accordingly, the increase or decrease in Weight of the baby may be conveniently Watched carefully, as is necessary With infants in order that the parent may be properly informed as to the state of health of the baby. vention presents another advantage, namely, that as the baby increases in weight and becomes more energetic, its efforts to produce the bouncing motion common to devices of this class Will naturally cause the indicator to move to a lower point upon the scale at each downward movement of the swing and the increase in such movement may Watched with interest by the parents.

Having thus described the invention, what I claim is:

1. In a device of the character specified, a frame comprising similarmembers inversely disposed and slidably related, each of the members including a yoke having a medial eye and parallel side rods terminating in lateral loops, the loops of one member en- The attachment embodying the in- ,disposed and slidably related, eeen of the members ineluding a. yoke having a medial eye and parallel side rode ternnnatmg 1n letei'el loops, the loops or one member engag- Leezeoe ing` the rods of the-companion member, e eoil Spring arranged between the rods of the members and engaged et its ends 'with the eyes or' the reseeetive yokes, plete covering;

e side oiA tlie 'lil me and the s" rino' and no f vided at opposite ends with lugs engaged about elements er" one of the members and provided willi scale graduations, and an indieater Carried by l-lie other member und engaged about en edge portion of the plaie end adapted lo Collet with the scale gradimlvions tliereol".

ln testimony whereof ai'iix my signelnre.

SAAC 0. DUNCAN. [n e] 

